Purifier and aerator



(No Model.) 2 Sheets-Sheet 1.

4 JL & T. PQNEWB PURII'IER AND AERATOR.

Patented Dec. 4, 1894,

WITNESSES. INVENTOHS "m2 NORRIS PEYERS c0, PHOTO-LITHOY. wAsnms'rom u. c

(No Model.) 2 Sheets-Sheet 2,

J'. & T'. F. NEWBY. PURIFIER AND .AEEATOR.

No. 530.445. Patented Dec. 4, 1894.

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, N 'iTE a STATES PATENT OFFICE.

'PURIFIER AND AERATOR.

SPECIFICATION forming part of Letters Patent No. 530,445, dated December4, 1894.

I Application filed February 13, 1394. Serial No. 500,056; (No modeL) Toall whom it may concern: 5 Be it known that we, JAMES NEWBY and THoMAsF. N EWBY, both of Harrisburg, in

sorb more water in baking;

the county of Dauphin and State of Pennsylvania, have invented a new andImproved Purifier and Aerator, of which the following is a full, clear,and exact description.

Our invention relates to improvements in that class of machines whichare used especially in connection with flooring-mills to separate thedust, fluff, &c., from middli ngs, break-stock and other flour stock,and in that class of machines used to aerate flour or flour stock; andthe object of our invention is to produce a simple and inexpensiveapparatus designed for such purposes, which apparatus uses air takenfrom beyond the walls of the building, purifies suchair by strainingthrough cloth and handles such pure air in a way to remove from thestock acted on thereby, the dust, fluff,and impuricools and bleaches thestock, causing the stock to bolt more freely in the mill, and in caseof'fiour, causing it to pack better, keep better and ab:

being adapted to act on a continuous stream 7 of stock as it is passedthrough it.

To these ends our invention consists of certain features of constructionand combinations of parts, which will be hereinafter described andclaimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure l is a sectional elevation of theapparatus embodying ourinvention. Fig. 2 is a sectional plan on the line 22 of Fig. 1. Fig. 3is a vertical sectionon the line 3-3 of Fig. 1,showing in detail thearrangement of the first dust chamber where the outside air 1 isadmitted and purified. Fig. t is avertical section on the line 44 ofFig.1, showing the arrangement of the second dust chamber and theconveyer for carrying away the dust and fluff; and Fig. 5 is a detailsectional plan on the line 5-5 of Fig. 1.

The apparatus is provided with a main case 10, which may be of anyapproved construction and which has a hopper-like bottom 10 terminatingin a discharge spout 10".

the apparatus.

The case is supported on a suitable framework 11 and 'at one side of.the case is a purifier 12 which has an inlet pipe13 deliv ering into aspace 14 at the top of it, this pipe 13 being adapted to extend throughthe building in which the purifier is located and to receive its airsupply from outof doors.

Inthe central portionof the purifier case is a series of verticallyarranged cells 15', made of cloth, through which the air may pass thesecells being supported on suitable cross bars 16 and 17 at their upperand lower ends, and thus a plurality of narrow channels,'open only atthe top and bottom, is

is a dustchamber 18, in which the dust may settle, and access to themain case-and to the dust chamber is had by means of doors 19 and 20."

The air is drawn from one side of the purifier 12 through a pipe 21, bymeans of a fan 22 of ordinary construction, which is carried by a shaft23 beneath the purifier, this shaft having a suitable drivingpulley 24,although any means may be employed for turning it. The fan causes theair to rush in through the pipe 13 and down through the purifying cells15, to the cloth of which the dust, smoke, and

other impurities stick, so that the air which issues from the purifierpasses to the main case freed from all impurities, cooled and incondition to have the most beneficial effect on the stock with which itcomesin contact, as specified presently.

By reference to Fig} 3 it will-be seen. that the cells 15 hang downwardin thepurifier case 12, air spaces being left at the sides so that theair passes through the cloth of the cells and down through the pipe 21,while the dust which drops from the cells collects in the chamber 18.

The air exhausted from the purifier by the fan 22 is deliveredinto thelower portion of the main case 10 and through a pipe 25, which hasanupturned end 26 which is closed at the top and in the sides .of whichare ports 3 27 through which the air passes, these ports being arrangedcircumferentially around the upturned end of the pipe so that theairissues from all sides thereof, as indicated by the arrows in Fig. 1.Above the pipe 25 is a pure air and is thoroughly dried, cooled, and

separated from the dust, fluff, &c.

The stock is fed upon the deflecting plate from a chute 29 arrangedvertically in the case 10 and enlarged preferably at its upper end, asshown at 30. A continuous stream of stock is delivered into the chutefrom the feed spout 31 above the case. In the lower end of the chute 29is a vertical revoluble shaft 32, carrying radial arms 33 which serve asagitators and distributers and cause the stock to drop suently upon thedeflecting plate 28 and fall evenly off its edge. It will be seen thatthis arrangement spreads the stock so that the air has the best possiblechance to strike every particle of it.

The shaft or spindle 32 of the agitator and plate has, at its lower end,a pinion 34 which meshes with a pinion 35 on a horizontal shaft 36,which shaft is held in a suitable casing 37 and projects outward throughthe main case 10, and it is driven by a belt 37, from the shaft 23, asshown in Fig. 2, but such shaft or spindle 32 may be driven by anysuitable means. Leading from the upper portion of the case 10 is a pipe38, which connects with a fan 39, and the discharge pipe 40 of this fandelivers into the dust collector 41 which comprises a case and cellstherein, located preferably on the side of the main case opposite thaton which the purifier is arranged.

The fan 39 draws the dust, fiuff and other matter from the case 10 anddischarges it into the dust collector 41. The dust collector is verysimilar in its arrangement to the purifier 12 already described, and isprovided with slotted sides 42 through which the air may escape. Thedust collector has within it a frame 43, which is arranged near the topand is suspended on bolts 44 which project through the top of thecollector case and have thumb nuts 45 thereon, so that the tension ofthe cells 46 suspended from the frame43 may be conveniently regulated.Any other suitable means may be employed for regulating the tension ofthese cells, which are identical in their construction with the cells 15already described, and which, at their lower ends, are attached to afreely moving frame 47 which is normally pulled down, so as to hold thecells taut, by spiral springs 48 attached to the frame 47 and tosupports beneath it, but any equivalent things may be substituted forthe springs.

Extending transversely beneath the frame 47 is a shaft 49 on which arecams or equivalent vibrators 50 which turn against the frame 47 andwhich, by so turning, cause the frame to vibrate vertically, thusconstantly shaking the cells 46 so as to shake the dust and fluff 0d ofthem, while the air passes out freely through the slots in the side ofthe case. The shaft 49 may be turned in any convenient way, but asshown, it is driven by a belt 51 extending from apulley on the shaft toa pulley on the conveyer shaft 52 below it, which shaft is provided witha pulley 53 to which a driving belt 54 may be attached. The dustcollector has a hopper-like bottom 55, through the lower portion ofwhich extends transversely the conveyer shaft 52, which has the ordinaryscrew blade 56 thereon, and the conveyer delivers into aspout 57 whichmay be made to discharge into any suitable receptacle so that the dust,fluff, &c., which settles in the collector, is constantly discharged.

It will be seen from the above description that a continuous stream ofstock may be delivered into and discharged from the main case 10, thatpure cold air is constantly applied to the stock, that the fluff anddust is eifectually separated from the stock, and that this fluif anddust is automatically collected.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent 1. An apparatus of the kind described,comprising a main case having a stock inlet at the top, a chute arrangedvertically in the case and into which the stock is delivered a hopperlike bottom for said case, an air purifier arranged at one side of thecase, an inlet pipe receiving air from outside of the building anddelivering into a space at the top of the purifier, a pipe leading fromone side of said purifier, a fan connected with the said pipe fordrawing the air through the purifier, a pipe leading from the fan anddelivering the purified air into the lower part of the main case, and apipe leading from the upper part of the main case and connecting with anexhaust fan, substantially as shown and described.

2. The combination with the main case having a suitable feed anddischarge, of the air purifier comprising a case having a plurality ofvertically arranged cloth walled cells located in the central portion ofthe case, a dust chamber arranged beneath the cells, a space (arrangedat the top of the case, a pipe leading from said space to the outsideair, a pipe leading from one sideof the purifier, a fan connected withthe said pipe and arranged to draw air through the purifier, and a pipeleading from the fan and discharging the air into the main case,substantially as shown and described.

3. The combination with the main case having a suitable feed inlet anddischarge, a depending chute arranged vertically in the case and throughwhich the stock falls, a revoluble agitator arranged in the lower end ofthe vided with an upturned closed end located beneath the revolvingdeflector plate, and air discharge ports arranged in the sides of theupturned end, substantially as described.

4. The combination with the main case, the feed chute arrangedvertically in the upper part thereof, and the hopper like bottom, of theair pipe delivering into the main case and having the upturned closedend, the air ports arranged in the sides of the upturned end, a casingarranged above the closed end of the pipe, a horizontal shaft held-insaid casing and provided with a pinion, a vertical shaft extendingthrough the top of the casing, and provided with a pinion meshing withthe pinion on the horizontal shaft, a deflector plate carried by'saidvertical shaft and arranged between the top of the said casing and thelower end of the vertical chute and means for revolving said horizontalshaft, substantially as shown and described.

5. The combination with the maincase having a stock inlet and discharge,of the dust collector having slotted sides, an inlet at the top and ahopper like bottom, a transverse carrier leading from the bottom, thecloth walled cells arranged within the case, the adj ustable supportsextending through the top of the case and from which the said cells aresuspended, means for vibrating said cells arranged beneath the same, anda fan exhausting from the upper part of the main case and discharginginto the dust collector, substantially as described.

6. The herein described dust collector, comprising a case having slottedsides, an inlet at the top, and a discharge hopper at the bottom, aframe arranged within the case near the top thereof, bolts projectingthrough the top of the case and on which the said frame is suspended,the said bolts being adjustable as set forth, a series of cloth walledcells suspended from the said frame, springs arranged at the bottom ofthe case to normally hold the cells straightfa screw conveyer in thedischarge hopper, a transverse shaft beneath the cells and cams on theshaft arranged to vibrate the cells, substantially as shown anddescribed.

JAMES NEWBY. THOS. F. NEWBY.

Witn esses:

JOHN HOFFER, Ms. W. BARKER.

